Method for producing optically active...

Details Method for producing optically active... Method for producing optically active...

2011-05-17

2011-05-17

Anderson, Rebecca L (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07943799

ABSTRACT:
It is provided to an optically active cycloalkylidenebisamidoalcohol compound represented by the formula (3):wherein R1represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R1s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R2represents a C1-6 alkyl group, an optionally substituted aralkyl group or an optionally substituted phenyl group and * represents an asymmetric center, a method for producing it and a method for producing an optically active cycloalkylidenebisoxazoline compound represented by the formula (4):wherein R1, R2and * are as defined above, using thereof.

REFERENCES:
patent: 4-266887 (1992-09-01), None
patent: 2004-161963 (2004-06-01), None
patent: 2004-339163 (2004-12-01), None
patent: 2005-41786 (2005-02-01), None
Denmark, S.E. and Stiff, C.M., “Effect of Ligand Structure in the Bisoxazoline Mediated Asymetric Addition of Methyllithium to Imines,” J. Org. Chem., 2000, vol. 65, No. 18, pp. 5875-5878.

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